Loom for weaving double-faced silk ribbons.



No. 761,483. PATENTED MAY 31,1904.

' o F. G- HETTLING.

LOOMFOR WEAVING DOUBLE FAGED SILK RIBBONS.

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LOOM FOR WEAVING DOUBLE FAGED SILKRIBBONS.

APPLIQATION FILED NOV.18.1902. v

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v F. G, HETTLING.

LOOM FOR WEAVING DOUBLE FAGED'SILK RIBBONS.

APPLICATION FILED NOV.18. 1902. Q

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invented certain new and useful Improvements- Patented May 31, 1904.

1 UNITED V STATES PATENT OFFICE.

FRITZ G. HETTLING, COLLEGEFOINT,,NEW YORK.

LO OIVI FOR WEAVING DOUBLE-FACED SILK RIBBQNS.

SPECIFICATION forming part of Letters Patent No. 761,483, dated May 31, 1904.

I Application filed November 18, 1902. Serial No. 131,810. (No model.)

To all whom it may concern.-

Be it known that I, FRITZ G. Hu'r'rLING, a citizen of the United States of America, and a resident of Collegepoint,Long Island, in the county of Queens and State of New York, h ave in Looms for Weaving Double-Faced Silk Ribbons, of which the following is a specification.

My invention has reference to looms for weaving double-faced'silk ribbons, and relates particularly to looms used for manufacturing that class ofrilobons which are made of double satin or satin and ottoman. faced silk ribbons are usually made of the heaviest of goods and are often manufactured with two colors. have been made with one shuttle in the 100m for each ribbon. Assuming that a ribbon was manufactured whose upper surface should be white, while the lower one should be black, then it could not be avoided that the dust of the black silk settled on the white silk unless special mechanical devices were used which were incorporated in the loom for the purpose of preventing this. When the threads are raised and lowered during the process of weaving, then the black threads cross 'the' white ones, and the dust of the black silk settles on the white silk. It is one feature of my invention to avoid this deficiency without special mechanical devices.

In my novel loom I employ two shuttles, one for the white and one for the black silk threads. The shuttles cross in the goods during the process of weaving, and as one shuttle is solely employed for one kind and color of the silk threads and the second shuttle for the other kind and color the settling of the dust of the one kind of threads on the other will be avoided. The two shuttles cross each other by each pick, and therefore half of the length of the former passage of the shuttle along the raceway is saved. As a consequence thereof, twice the quantity of goods is obtained when two shuttles are used as in my improved loom I as compared'with the quantity of goods obtained by a loom in which one shuttle is employed for weaving such ribbons. Assuming These double-- Heretofore these ribbons that a ribbon made by the former would require, for instance, one hundred and twenty picks per inch of ribbon, then a ribbon woven by my improved loom will require only sixty picks per inch. If, for instance, the shaft of the loom makes sixty revolutions per minute, then it requirestwo minutes for producing one inch of this kind of ribbon when the old loom is employed, while my improved loom needsto run only one minute for producing one inch of ribbon by virtue of the two shuttles crossing each other in the goods during the process of weaving. In plain words, the

white silk ribbon and the black silk ribbon are woven in two adjoining planes each independently, and simultaneously they are bound together on the inner surfaces, and the edge 'is produced at the same time, so that the completely-finished double-faced silk ribbon will be produced in one operation, as will be fully explained farther. down. This is another feature of my invention.

' The invention is illustrated in the accompanying drawings, i n which Figure 1 is a central longitudinal section of the loom embodying my invention.' Fig. 2 is a cross-section of same on line 2 2 of Fig. 1. Fig. 3 is a diagrammatioal cross-section of the fabric at right angles to the warpthreads. Fig. 4: is a diagrammatical longitudinal section of a certain portion of the fabric at right angles to the weft-threads, showing the binding-threads; and Fig. 5 is a top view of a shuttle specially adapted for this kind of weaving. I 7

Similar letters of reference denote like parts in all'the figures. I

The loom is mounted on substantial frame- Work.

In the drawings, a represents the warp-reel containing the white satin threads. at is the warp-reel for the black satin threads. From the warp-reels the threads pass down and around the glass rods 1", from where they go into the pattern-box 0. The pattern-boxcontains twenty -two sheds, of which the upper eight are for the white satin warp-threads and eight lower ones are for the black satin warpthreads. Two sheds are for binding and four for weaving the edges. The sheds are designated by the letter (Z. Each of the sixteen sheds used for the warp-threads is provided with two hundred vertical cords or heddles 6, each having in the middle a loop 6, called the heddle-eye, through which a warp-thread passes.v The upper or white threads wand the lower black threads Z) after leaving the glass rods pass into the sheds and, as stated, through the heddle-eyes. In the sheds the warp-threads are separated, thereby creating an opening in the warp, through which the shuttle is thrown As before stated, two shuttles are employed in my loom, as is shown in Fig. 2. The pick-operating mechanism 12 carries on the right side the shuttle s, which contains white weftthread, and somewhat lower to the left and a little farther back in another plane the shuttle s, which contains black weft-thread. Referring again to Fig. 1, only the white shuttle s is visible thereon. The white shuttle passes through the opening in the warp of the white satin threads, and at the same time the black shuttle passes through the opening in the warp of the black satin threads, so that the shuttles cross each other by each pick during the process of weaving, saving thus half of the length of the former passage along the raceway and obtaining thereby twice the length of ribbon in the same time as compared with a one shuttle loom. If, as above referred to, one hundred and twenty picks are required to produce one inch of ribbon with the old loom, then only sixty picks are required by my novel loom. At sixty revolutions per minute it took formerly two minutes to produce one inch of ribbon, and with my novel loom it takes but one minute to produce one inch, so that in the same time twice the length of ribbon is produced. The importance and the value of this feature of my invention are apparent.

Assuming now that the satin warp-threads have been separated by the sheds and that the shuttles pass through their raceways supply-- ing the weft-threads, producing thus two ribbone in the two adjoining planes, one behind the other, then the two ribbons must be bound together. In Fig. 1, w w represent the binding-threads. They pass into the first two sheds on the right side, and when the shuttles pass along their raceways then the bindingthreads change, one shed rising and the other going down, thereby interlacing the binding and the weft threads. Upon the return of the shuttles the same takes place again, and the binding-threads change again, and so on. In this way the black and the white ribbon are bound together on the inner surfaces. This is diagrammatically shown in Fig. 4:, in which the warp-threads are represented by the letter 10 the weft-threads by w and the hinding-threads, as before, by 10.

The four selvage-threads z' 71 v1 7: for forming ter, each one entering one shed. When the black shuttle moves to the right, then simultaneously the white shuttle moves to the left. At this movement the two outside bindingthreads change, the left one going up and the right down, and by this movement the two shuttle-threads are intertwined or twisted by means of the binding-threads, and thereby form the compact round edge.

It will be understood from the description thus far given that I employ two sets of warpthreads, both of which are woven synchronously, but each independently of the other, into a fabric, the opposite faces of which are identical with the exception of the color and that the warp-threads move in opposite directions toward and away from the center, but never past the center, while the bindingthreads for tying the two fabrics together are adapted to be moved in opposite directions past the center simultaneously with each pick of the shuttles, so that the two sets of warpthreads, the two sets of weft-threads, and the two binding-threads are all moving at each pick of the shuttles, and at the same time the selvage-threads are interwoven with the weft and binding threads, thereby greatly expediting the operation and producing more goods in a shorter time than heretofore. \Vhen this is done, then the ribbon is finished and passes out over the breast-beam a down on the spool 0, on which it is finally wound. In Fig. 2 between the shuttles and above the black central line the warp-threads w are still loose, while below the central line the finished ribbon leaves the loom, and in Fig. 1 the finished ribbon starts at the point Fig. 3 shows diagrammatically in cross-section the fabric at right angles to the warpthreads. As is seen from this figure, the eighth warp-thread is interlaced by the weft-thread. The portion on the left side where every thread is interlaced represents the edge.

The shuttle represented in Fig. 5 is plainly understood from the drawing. The top long portion of same has a groove with teeth thereon and is moved by tooth-wheels in the pickoperating mechanism in the usual manner.

In case it is desired to weave figures on thetop ribbon then my novel loom may be used in combination with the jacquard-machine. The top ribbon is then woven by the jacquardmachine, and the eight sheds used for weaving the top ribbon are not required. Only the eight sheds for the lower ribbon will be needed.

Having thus described my invention,I claim as new and desire to secure by Letters Patent A loom for weaving double-faced silk ribbons, comprising means for operating an upper and a lower set of warp-threads simultaneously in opposite directions toward and away from a horizontal central plane and independent of each other, whereby each set of gether, and-heddlcs for operating the selvage- Warp-threads is Woven synchronously into a threads, all substantially as described. I fabric of diflerent color, means for operating Signed at New York, N. Y., this 15th day oppositely-moving shuttles, arranged on olifof November l902.

5 ferent' parallel planes, simultaneously With FRITZ G. HETTLING.

the operation of each set of Warp-threads, heol- Witnesses: dles for operating the binding-threads on the RAY ROKOFSKY,

horizontal central plane to the fabrics to- HATTIE LUEDERS. 

